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1. 发明专利

JP2014218977A 燃料噴射制御装置および燃料噴射システム有权
标题翻译：燃油喷射控制装置和燃油喷射系统
公开(公告)号：JP2014218977A
公开(公告)日：2014-11-20
申请号：JP2013100302
申请日：2013-05-10
申请人：株式会社デンソー , Denso Corp
发明人： IMAI KEITA , NAGATOMO HIROAKI , ITO EIJI
IPC分类号： F02D41/20 , F02D41/02 , F02D41/04 , F02M51/06 , F02M61/10 , F02M61/14 , F02M61/18
CPC分类号： F02D41/02 , F02D41/04 , F02D41/20 , F02M51/06 , F02M61/10 , F02M61/14 , F02M61/18
摘要：【課題】微少量の燃料を噴射する場合であっても、燃料噴霧の微粒化を十分に促進できるようにする。【解決手段】ECU(燃料噴射制御装置)は、以下の選択手段S10、S11、およびポンプ制御手段を備える。選択手段は、弁体がフルリフト位置に達した後に閉弁作動を開始するフルリフト噴射、および弁体がフルリフト位置に達することなく閉弁作動を開始するパーシャル噴射のいずれで燃料を噴射させるかを選択する。ポンプ制御手段は、インジェクタへ供給される燃料の圧力が目標圧力となるよう、高圧ポンプの作動を制御する。そして、燃料噴射システムがとりうる目標圧力の最大値Pmaxでパーシャル噴射したときの最大噴射量をパーシャル最大噴射量Qplmaxと呼ぶ場合において、選択手段は、要求噴射量Qreqがパーシャル最大噴射量Qplmax以下である場合にパーシャル噴射を選択する。【選択図】図8
摘要翻译：要解决的问题：即使在注入少量燃料时也能充分促进燃料喷雾的雾化。解决方案：ECU（燃料喷射控制装置）包括选择装置S10，S11和泵控制装置。选择装置选择用于燃料喷射的喷射，在阀元件到达完全提升位置之后的起动阀关闭操作的全升程注入或用于启动阀关闭操作的部分喷射，而不使阀元件达到完全提升位置。泵控制装置控制高压泵的操作，使得供给到喷射器的燃料的压力达到目标压力。当在燃料喷射系统允许的目标压力的最大值Pmax处的局部喷射期间的最大喷射量被定义为部分最大喷射量Qplmax时，如果需要的喷射装置Qreq是部分最大喷射量Qplmax或更低，选择装置选择部分注入。

2. 发明专利

JP2007009824A Fuel injection valve 审中-公开
标题翻译：燃油喷射阀
公开(公告)号：JP2007009824A
公开(公告)日：2007-01-18
申请号：JP2005192581
申请日：2005-06-30
申请人： Denso Corp , 株式会社デンソー
发明人： MARUOKA IWAO , ITO EIJI
IPC分类号： F02M61/10 , F02M47/00 , F02M47/02 , F02M51/00 , F02M61/16
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve capable of stably controlling a fuel pressure in a pressure control chamber.
SOLUTION: In a fuel injection valve 1, pressure of pressure control chamber 40 has to be stably controlled in order to stabilize injection. Fuel flowing property in the downstream end of an inlet port orifice 74 arranged at a fuel inflow side of the pressure control chamber 40 is arranged coaxially with the vector of an outflow flow from an outlet port orifice 73. A control piston 41 provided separately from an orifice plate 7 provided with the outlet port orifice 74 is provided to form a diffuser 29 structure long enough to suppress a turbulence of the downstream end flow of the inlet port orifice 74 or swirl and having a uniform spread. Thus, sufficiently smooth pressure recovery is realized, fuel flow characteristics are stabilized and stable fuel injection property is obtained.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够稳定地控制压力控制室中的燃料压力的燃料喷射阀。解决方案：在燃料喷射阀1中，为了稳定喷射，必须稳定地控制压力控制室40的压力。布置在压力控制室40的燃料流入侧的入口孔74的下游端的燃料流动特性与来自出口孔73的流出流的矢量同轴设置。控制活塞41与设置有出口孔口74的孔板7被设置成形成足够长的扩散器29结构，以抑制入口孔口74的下游端流动的紊流或涡流并且具有均匀的扩展。因此，实现了足够平稳的压力恢复，燃料流动特性得到稳定并且获得了稳定的燃料喷射性能。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2005299642A Fuel injection nozzle 审中-公开
标题翻译：燃油喷射喷嘴
公开(公告)号：JP2005299642A
公开(公告)日：2005-10-27
申请号：JP2005041326
申请日：2005-02-17
申请人： Denso Corp , 株式会社デンソー
发明人： ITO EIJI , MASAGAKI YOSHIRO
IPC分类号： F02M61/18
CPC分类号： F02M61/1813 , F02M61/182 , F02M61/1826
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection nozzle to be adapted to the property of an engine by making the penetrating force of a spray flow freely adjustable for every nozzle hole group and effectively utilizing air in a cylinder combustion chamber.
SOLUTION: The nozzle hole group of a nozzle body 2 is constituted of a plurality of small nozzle holes 10 having the same hole diameter. The small nozzle holes 10 are arranged adjacent and almost parallel to each other so that fuel injected from the small nozzle holes 10 forms one spray flow. The plurality of nozzle hole groups are provided in the peripheral direction of the nozzle body 2. They have a first nozzle hole group 10A and a second nozzle hole group 10B different in the number of the small nozzle holes 10 constituting the nozzle hole group. Since the fuel is atomized and injected from the plurality of small nozzle holes 10 constituting the nozzle hole group, combustion is improved to develop higher exhausting performance. Since the small nozzle holes 10 are arranged adjacent and almost parallel to each other, the fuel injected from the small nozzle holes 10 forms one spray flow. As a result, the penetrating force of the spray is improved to develop sufficient output performance during high speed travel and high load.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过使喷射流的穿透力能够对于每个喷嘴孔组自由调节并且有效地利用气缸燃烧室中的空气来提供适于发动机性能的燃料喷射喷嘴。解决方案：喷嘴体2的喷嘴孔组由具有相同孔径的多个小喷嘴孔10构成。小喷嘴孔10彼此相邻并且几乎平行地布置，使得从小喷嘴孔10喷射的燃料形成一个喷射流。多个喷嘴孔组设置在喷嘴体2的圆周方向上。它们具有构成喷嘴孔组的小喷嘴孔10的数量不同的第一喷嘴孔组10A和第二喷嘴孔组10B。由于燃料从构成喷嘴孔群的多个小喷嘴孔10被雾化并喷射，因此燃烧得到改善，以产生更高的排气性能。由于小喷嘴孔10彼此相邻并且几乎平行地布置，所以从小喷嘴孔10喷射的燃料形成一个喷射流。结果，喷雾的穿透力得到改善，以在高速行驶和高负荷下产生足够的输出性能。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2014134188A Fuel injection valve 有权
标题翻译：燃油喷射阀
公开(公告)号：JP2014134188A
公开(公告)日：2014-07-24
申请号：JP2013004156
申请日：2013-01-14
申请人： Denso Corp , 株式会社デンソー
发明人： IMAI KEITA , ITO EIJI
IPC分类号： F02M51/06
CPC分类号： F02M51/0664 , F02M51/0675 , F02M61/205
摘要： PROBLEM TO BE SOLVED: To decrease a collision speed of a movable core.SOLUTION: A fuel injection valve includes: a valve element moving along with a movable core attracted by a fixed core, and opening an injection hole; and elasticity application means (a main spring and a sub-spring) elastically deforming as the valve member moves, and applying an elastic force to the valve element in a valve closing direction. If it is defined that, among fuel-pressure valve closing forces that are forces for pressing the valve element in the valve closing direction by a fuel pressure, the fuel-pressure valve closing force when the valve element is closed is "Ffc" and the fuel-pressure valve closing force when the valve element moves to a maximum valve opening position is "Ffo", a moving distance of the valve element from a valve closing position to the maximum valve opening position is "L", and that an elastic modulus of the elasticity application means is "K", the elastic modulus is set so as to satisfy a condition represented by Ffc-Ffo≤L×K.
摘要翻译：要解决的问题：降低可动芯的碰撞速度。解决方案：一种燃料喷射阀，包括：阀芯与由固定芯吸引的可动芯一起移动并打开喷射孔; 弹性施加装置（主弹簧和副弹簧）随着阀构件的移动而弹性变形，并且沿阀关闭方向对阀元件施加弹力。如果确定在作为通过燃料压力在阀关闭方向按压阀元件的力的燃料压力阀闭合力中，当阀元件关闭时的燃料压力阀关闭力为“Ffc”，并且当阀元件移动到最大阀打开位置时的燃料压力阀关闭力为“Ffo”，阀元件从关阀位置到最大阀打开位置的移动距离为“L”，并且弹性模量弹性模量为“K”，弹性模量设定为满足由Ffc-Ffo≤L×K表示的条件。

5. 发明专利

JP2014122614A Fuel injection valve, and method of fitting fuel injection valve 有权
标题翻译：燃油喷射阀，以及燃油喷射阀的安装方法
公开(公告)号：JP2014122614A
公开(公告)日：2014-07-03
申请号：JP2013173673
申请日：2013-08-23
申请人： Denso Corp , 株式会社デンソー
发明人： OHATA KEIGO , ITO EIJI
IPC分类号： F02M61/16 , F02M61/14
CPC分类号： F02M61/14 , F02M55/004 , F02M2200/02 , F02M2200/16
摘要： PROBLEM TO BE SOLVED: To suppress breakage of a seal material.SOLUTION: A fuel injection valve includes a body 10 having an injection hole for injecting fuel formed, and an annular seal material 40 mounted on the body 10. On an outer peripheral surface of the body, a diameter reduction part 13 shaped by reducing the body 10 in a radial direction is formed as a part where the seal material 40 is mounted. It is premised that a part between an inner peripheral surface of a fitting hole formed at a predetermined place of an internal combustion engine and an outer peripheral surface of the body is sealed with the seal material 40, in a state that the body 10 is inserted into the fitting hole. An annular groove part 15 which is recessed in a radial direction of the body 10 is formed at a part of the diameter reduction part 13 where an injection hole-side tip part 41 of the seal material 40 is mounted.
摘要翻译：要解决的问题：抑制密封材料的破裂。解决方案：燃料喷射阀包括具有用于喷射形成的燃料的喷射孔的主体10和安装在主体10上的环形密封材料40.在外壳的外周面上作为安装密封材料40的部分，形成有通过使主体10沿径向减小而成形的直径减小部13。假设在形成在内燃机的预定位置处的装配孔的内周面与主体的外周面之间的部分在密封材料40被密封的状态下被插入进入装配孔。在安装密封材料40的注入孔侧端部41的直径减小部13的一部分，形成有沿主体10的径向凹入的环状的槽部15。

6. 发明专利

JP2012229668A Constant residual pressure valve 有权
标题翻译：恒压静压阀
公开(公告)号：JP2012229668A
公开(公告)日：2012-11-22
申请号：JP2011099108
申请日：2011-04-27
申请人： Denso Corp , 株式会社デンソー , Nippon Soken Inc , 株式会社日本自動車部品総合研究所
发明人： OIKAWA SHINOBU , TOMITA HIROKUNI , ITO EIJI
IPC分类号： F02M55/00 , F02M55/02
摘要： PROBLEM TO BE SOLVED: To provide a constant residual pressure valve can suppressing such an occurrence that foreign matter in the fuel attaches or deposits between a valve seat and a valve element.SOLUTION: The constant residual pressure valve 60 includes the valve element 61, a stopper 65, a spring 68, and an orifice 69. The stopper 65 of cylindrical shape installed in a fuel passage 57 has a shaft passage 66 and the second valve seat 67. The valve element 61 installed in a fuel chamber 43 has a first seat part 611 that can set itself on the first valve seat 41 and separate and a second seat part 612 that can set itself on the second valve seat 67 and separate. The spring 68 energizes the valve element 61 toward the first valve seat 41. The orifice 69 leading in the radial direction of the minor diametric part 652 of the stopper 65 controls the fuel flow from the fuel chamber 43 to the downstream passage 44. When the valve element 61 separates from the first valve seat 41 and sets itself on the second valve seat 67, the distance between the first seat part 611 and the first valve seat 41 enlarges.
摘要翻译：要解决的问题：为了提供恒定的残压阀，可以抑制燃料中的异物附着或沉积在阀座和阀元件之间的发生。
解决方案：恒定残余压力阀60包括阀元件61，止动件65，弹簧68和孔69.安装在燃料通道57中的圆柱形止动件65具有轴通道66，第二安装在燃料室43中的阀元件61具有第一座部611，该第一座部611可自行设置在第一阀座41上并且分开，第二座部612可自行设置在第二阀座67上并分离。弹簧68使阀元件61朝向第一阀座41通电。沿挡块65的小直径部分652的径向方向引导的孔口69控制从燃料室43到下游通道44的燃料流。当阀元件61与第一阀座41分离并将其自身设置在第二阀座67上，第一座部611与第一阀座41之间的距离变大。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2006312892A Fuel injection valve 审中-公开
标题翻译：燃油喷射阀
公开(公告)号：JP2006312892A
公开(公告)日：2006-11-16
申请号：JP2005135401
申请日：2005-05-06
申请人： Denso Corp , 株式会社デンソー
发明人： TSUDA TOMOYOSHI , ITO EIJI , MARUOKA IWAO
IPC分类号： F02M51/06 , F02M61/16
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve constructed to restrict nozzle full-lift by forming a stopper face 70 on the nozzle side of a valve body 3 without using a chip packing. SOLUTION: A step is provided on a control piston no-sliding portion 33 of the valve body 3. The step is used as the stopper face 70 of the nozzle lift. The upper end of a nozzle needle 42 is set to be higher than the end face of a nozzle body 41. Between the upper end of the nozzle needle 42 and the lower end of a control piston 22, a spacer 7 is provided to be restricted by the stopper face 70. A fuel passage such as a groove is provided in the upper face of the spacer 7 for allowing leak fuel leaking through a sliding portion of the control piston 22 to pass therethrough and for restricting the nozzle full-lift. The lower end face of the valve body 3 has direct contact with the upper end face of the nozzle body 41 and it is fastened thereto with a retaining nut 5 to construct the fuel injection valve 1. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种燃料喷射阀，其构造成通过在阀体3的喷嘴侧上形成止动面70来限制喷嘴全升程，而不使用芯片包装。解决方案：在阀体3的控制活塞不滑动部分33上设置一个台阶。该步骤用作喷嘴升降机的止动面70。喷嘴针42的上端被设定为高于喷嘴体41的端面。在喷嘴针42的上端和控制活塞22的下端之间设置限制件7 在隔离件7的上表面上设有诸如凹槽的燃料通道，用于允许通过控制活塞22的滑动部分泄漏的燃料泄漏通过并限制喷嘴全升。阀体3的下端面与喷嘴主体41的上端面直接接触，用固定螺母5固定在其上，构成燃料喷射阀1.版权所有（C）2007， JPO＆INPIT

8. 发明专利

JP2005315136A Fuel injection nozzle 有权
标题翻译：燃油喷射喷嘴
公开(公告)号：JP2005315136A
公开(公告)日：2005-11-10
申请号：JP2004132742
申请日：2004-04-28
申请人： Denso Corp , 株式会社デンソー
发明人： ITO EIJI
IPC分类号： F02M61/18
CPC分类号： F02M61/1846 , F02M61/1833
摘要： PROBLEM TO BE SOLVED: To promote atomization of fuel spray by high spray penetration, by enlarging a nozzle port maximum diameter of a nozzle port expanded part 33 to a nozzle port minimum diameter of a nozzle port inlet part 31 and a nozzle port minimum diameter of a nozzle port outlet part 32 of a nozzle port part 9 arranged in a tip part of a nozzle body 2.
SOLUTION: A cavity is formed by turbulence of a flow of fuel in a nozzle port expanded flow passage 35 reaching the nozzle port maximum diameter of the nozzle port expanded part 33 from the nozzle port minimum diameter of the nozzle port inlet part 31. The fuel is injected into a combustion chamber of respective cylinders of an engine while converging the fuel flow in a state of taking the cavity in the flow of the fuel in a nozzle port contracted flow passage 36 reaching the nozzle port minimum diameter of the nozzle port outlet part 32 from the nozzle port maximum diameter of the nozzle port expanded part 33. Thus, the atomization is promoted just after fuel injection, and the fuel spray injected from the nozzle port outlet part 32 of the nozzle port part 9 becomes thick and long fuel spray, and is injected in the aiming direction in the combustion chamber of the respective cylinders of the engine without dispersing the fuel spray.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了通过高喷雾渗透来促进燃料喷雾的雾化，通过将喷嘴端口扩展部分33的喷嘴端口最大直径扩大到喷嘴端口入口部分31的喷嘴端口最小直径和喷嘴端口布置在喷嘴体2的顶端部分中的喷嘴端口部分9的喷嘴口出口部分32的最小直径。解决方案：通过喷嘴端口扩张流动通道35中的燃料流的紊流形成空腔从喷嘴口入口部分31的喷嘴端口的最小直径到达喷嘴口扩展部分33的喷嘴口最大直径。燃料被喷射到发动机的各个气缸的燃烧室中，同时使燃料流在将喷嘴端口收缩流路36中的燃料流中的空腔从喷嘴口膨胀部33的喷嘴口最大直径到达喷嘴口出口部32的喷嘴口最小直径。因此，在燃料喷射之后促进燃烧，并且从喷嘴端口部分9的喷嘴口出口部分32喷射的燃料喷雾变得厚且长的燃料喷射，并且在瞄准方向上被喷射到相应气缸的各个气缸的燃烧室中发动机不分散燃油喷雾。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2014141902A Fuel injection valve 有权
标题翻译：燃油喷射阀
公开(公告)号：JP2014141902A
公开(公告)日：2014-08-07
申请号：JP2013009502
申请日：2013-01-22
申请人： Denso Corp , 株式会社デンソー
发明人： NAGATOMO HIROAKI , ITO EIJI , IMAI KEITA
IPC分类号： F02M51/06
摘要： PROBLEM TO BE SOLVED: To stabilize a fuel injection amount.SOLUTION: The fuel injection valve comprises: a valve member 40 for opening/closing an injection hole 18 of a valve housing 10 by reciprocal movement to an opening/closing valve side; a stationary core 20 fixed to the valve housing 10; a movable core 30 provided movably forward and backward together with the valve member 40, and moving to an opening valve side by generating magnetic force between it and the stationary core 20; a closing valve spring 50 held by the stationary core 20, and pressure-driving the valve member 40 to a closing valve side; and a bush 70 fixed to the stationary core 30, and slide-supporting the valve member 40 from an outer peripheral side. The stationary core 20 has a holding hole 26 for holding the closing valve spring 50 fitted inside on the opening valve side, and the bush 70 has a slide hole 72 inside which the valve member 40 slides nearer the valve closing side than the holding hole 26, and has a loose insertion hole 74 inside which the closing valve spring 50 is inserted because of larger inside diameter than that of both of the holding hole 26 and the slide hole 72 between the holding hole 26 and the slide hole 72.
摘要翻译：要解决的问题：稳定燃料喷射量。解决方案：燃料喷射阀包括：阀构件40，用于通过往开关阀侧往复运动来打开/关闭阀壳体10的喷射孔18; 固定在阀壳10上的固定芯20; 与阀构件40一起可动地前后移动的可动铁心30，通过在其与固定铁芯20之间产生磁力而向开阀侧移动; 由固定铁心20保持的关闭阀弹簧50，并将阀构件40压力驱动到关闭阀侧; 以及固定在固定铁心30上的衬套70，从外周侧滑动支承阀体40。固定芯20具有用于保持安装在开阀侧内侧的关闭阀弹簧50的保持孔26，并且衬套70具有滑动孔72，在该滑动孔72中，阀构件40比保持孔26更靠近阀关闭侧滑动并且具有松动的插入孔74，由于与保持孔26和滑动孔72之间的保持孔26和滑动孔72的内径相比较大的内径，封闭阀弹簧50被插入其内。

10. 发明专利

JP2014125972A Fuel injection valve 有权
标题翻译：燃油喷射阀
公开(公告)号：JP2014125972A
公开(公告)日：2014-07-07
申请号：JP2012283500
申请日：2012-12-26
申请人： Denso Corp , 株式会社デンソー
发明人： IMAI KEITA , ITO EIJI , NAGATOMO HIROAKI
IPC分类号： F02M51/06
CPC分类号： F02M51/0614 , F02M51/0685 , F02M2200/08
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve with a stable fuel injection amount.SOLUTION: A fuel injection valve comprises: a valve housing 10 having an injection hole 18; a valve member 40 for opening/closing the injection hole 18 by a reciprocal movement to a valve opening side and a valve closing side in an axial direction; a stationary core 20 fixed to the valve housing 10; a movable core 30 provided movably forward and backward together with the valve member 40, and moving to the valve opening side by a magnetic force generated between it and the stationary core 20; a magnetic valve closing spring 50 held by the stationary core 20 and pressurizing and driving the valve member 40 to the valve closing side; and a solenoid part 60 fixed on the outer peripheral side of the stationary core 20 and generating a magnetic force by guiding a magnetic flux to the cores 20, 30 according to energization. Under this constitution, the stationary core 20 has a holding hole 26 for holding the valve closing spring 50 fitted inside it on the valve opening side. The solenoid part 60 has a magnetic yoke 63 for reducing passage of the magnetic flux in a radial direction at a specific portion S in a circumferential direction at a position overlaid on an entire area of the holding hole 26 in the axial direction.
摘要翻译：要解决的问题：提供具有稳定的燃料喷射量的燃料喷射阀。解决方案：燃料喷射阀包括：具有喷射孔18的阀壳体10; 阀构件40，用于通过向阀开口侧的往复运动和沿轴向的阀关闭侧打开/关闭喷射孔18; 固定在阀壳10上的固定芯20; 与阀构件40一起前后移动的可动铁芯30，并且通过在其与固定铁芯20之间产生的磁力而向阀开口侧移动; 由固定铁芯20保持的电磁阀关闭弹簧50，并将阀构件40加压并驱动到关闭侧; 以及固定在固定铁心20的外周侧的螺线管部60，通过将励磁磁力引导到铁芯20,30而产生磁力。在这种构造下，固定芯20具有用于保持安装在阀开启侧的闭锁弹簧50的保持孔26。螺线管部60具有用于在保持孔26的轴向整个区域上重叠的位置沿圆周方向减小磁通在径向方向上的通路的磁轭63。

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